extract all rows from file_1 except those with first two columns matching the first two columns from file_2

Question

I would like to do the inverse of this (exactly same example): Extract rows from file_1 based on matching the first two columns from a file_2

That is, extract all rows from file_1 except those with the first two columns matching the first two columns from file_2.

Answer:

awk 'NR==FNR {get[$1" "$2]++; next} !get[$1" "$2]' f2.txt f1.txt

Answer 1

This should work:

$ awk 'NR==FNR {get[$1" "$2]++; next} !get[$1" "$2]' f1.txt f2.txt